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Ciência e Agrotecnologia

versão impressa ISSN 1413-7054versão On-line ISSN 1981-1829


SANTOS, Fernando Carlos Borja dos et al. Adaptability of exotic goat and naturalized to the  climatic conditions of the tropic semi-arid brazilian norheast. Ciênc. agrotec. [online]. 2005, vol.29, n.1, pp.142-149. ISSN 1413-7054.

Sixteen goats males, eigth exotic (4 from the breed Boer and 4 from the Anglo-Nubiana) and eigth naturalized (4 from the race Moxotó and 4 from the Brown-Pardo-Sertaneja),  all  pure  and  one  year  old.  The  temperature  rectal,  respiratory  frequency, cardiac frequency, temperature from the forehead, of the ribs, of the flank and of the scrotum, was taken in the morning and afternoon during the  period from  21 august to 4  september of 2002. A you had of.  The animals were  submitted  to  the  tolerance to the heat in the period from 5 to 17 of  september of  2002 on the demi-dry climate of the northeast of Brazil.  The data shown effect of breed on the physiological parameters studied.  The temperatures and frequencies were higher (P <0.05) in the afternoon period.  The tolerance to the heat had not significant difference (P <0.05) among the breeds, therefore breed Boer shown the highest index of tolerance to the heat.  The animals from the breed Boer ahown a higher  tolerance  to  the  heat  in  relation to the others breed that shown higl tolerance.  The breeds Boer and Anglo-Nubiana, despite of exotic, shown temperatures, frequencys and index of tolerance to the heat that should be considered as adapted to the  demi-dry climate of the Brazilian northeast.

Palavras-chave : Anglo-Nubiano; bioclimatology; Boer; index of tolerance to the heat; Moxotó; physiological parameters.

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